Finding the Third Proportional to 20,887.88 and 42,795

Step by Step Solution

1. Step 1: Write the proportion equation
   20,887.88 : 42,795 = 42,795 : x
2. Step 2: Convert to fraction form
   20,887.88/42,795 = 42,795/x
3. Step 3: Cross multiply
   20,887.88x = 42,795 × 42,795
4. Step 4: Simplify right side
   20,887.88x = 1,831,412,025
5. Step 5: Solve for x
   x = 1,831,412,025/20,887.88
6. Step 6: Final answer
   x = 87,678.24